Abstract: A progressive pressing method includes: a first bead molding step of molding a first bead having a length of a second predetermined distance extending in a longitudinal direction of the elongated metal plate, in a side part of a region which becomes a first product part of the elongated metal plate; a first conveying step of conveying the elongated metal plate in the longitudinal direction by a feed amount which is a first predetermined distance; and a second bead molding step of molding a second bead having a length of the second predetermined distance extending in the longitudinal direction of the elongated metal plate, so as to link with the first bead molded in the first bead molding step, in a side part of a region which becomes a second product part of the elongated metal plate, in which the second predetermined distance is longer than the first predetermined distance.

Abstract: A description is given of a method and a device for forging a rod-shaped workpiece (5) which is deformed with the aid of forging tools (1, 2, 3, 4) in the sense of a cross-sectional displacement perpendicular to the forging axis (a) and is subjected to an axial advancement and possibly a rotation about the forging axis (a) during the pauses in the engagement of the forging tools (1, 2, 3, 4). In order to achieve an advantageous grain refinement, it is proposed that the workpiece (5) is deformed in the sense of the cross-sectional displacement perpendicular to the forging axis (a) in a bending zone (13) between two central supports (11) by means of the forging tools (1, 2, 3, 4) acting on the workpiece (5) radially in relation to the forging axis (a).

Abstract: The present invention describes a method of manufacturing a near-net shaped hollow shaft useful for high power applications such as gearboxes for wind energy industry. The method involves providing a concast bloom (of a round or rectangular or of any polygonal cross section) or an as-cast round ingot from which a hollow perform is prepared using hollow die punching, followed by process of heat treatment, proof-machining and stress relieving.

Abstract: A manufacturing method is provided for a terminal (10) that has a board connecting portion (12) to be connected to a circular through hole (B1) formed to penetrate through a board (B). The manufacturing method includes a wire drawing step of manufacturing a wire material having a polygonal cross-section with obtuse interior angles by drawing the wire material through an opening of a wire drawing die, the opening having a polygonal shape with obtuse inner angles. The method then includes a surface processing step of applying a surface processing to the wire material, and a cutting step of cutting the wire material having the surface processing applied thereto to a specified length to form the terminal (10).

Abstract: The invention is characterized in that, when protrusion parts 30 are raised from a substrate W and the protrusion parts 30 are formed into spacers 12 with a predetermined outer diameter D and height H, the protrusion parts 30 are temporarily formed so as to have a diameter larger than a predetermined outer diameter D and a height larger than a predetermined height H, and the protrusion parts 30 are crushed, and leading end portions 30b of the protrusion parts 30 are protruded in a radially outward direction so as to have a double-layered structure, and then through-holes 35 are opened at the leading end portions 30b. Accordingly, the leading end portions 30b have strength due to a double-layered structure, and side portions 30a also have high strength due to contraction by pressing, whereby the sleeve-integrated member includes the entirely high-strength spacers 12.

Abstract: Systems and methods of manufacturing a brazing alloy component such that the brazing alloy component has sufficient ductility to be formed into a ring-shaped member.

Abstract: Disclosed are metallic wire with high surface quality and low-cost suitable for use as material for grip rings and a producing method and apparatus thereof. Metallic wire 34 deformed in a coil shape is passed through a shape correction unit 14 so as to straighten it. Furthermore, while upper and lower pressing rollers 19, 20, 26, 27 prevent the metallic wire 34 from warping upwardly and downwardly, wedge-shaped grooves are continuously formed on the metallic wire 34 by means of a first cutting roller 21 and a second cutting roller 23.

Abstract: A method of manufacturing a torsion bar includes a first shaping step of reducing a diameter of a round bar steel material according to cold drawing work so as to have a hardness including an inside through a surface layer of 320 or more to 450 or less by Vickers hardness (HV), and a second shaping step of cutting a midway area of the steel material in the longitudinal direction so as to obtain a spring portion.

Abstract: A single carriage of the drawing apparatus for pulling a continuous metal workpiece through a drawing die is displaceable back and forth by a linear electronic motor drive. A coil forms a supply upstream of the die which can pay off a length of the workpiece to form a loop adapted to be drawn through the die without tensioning it against the coil.

Abstract: A method of manufacturing a speed ring in a continuous process using a magnetizing fixture and a trimming fixture. An unmagnetized magnetic strip is fed into the trolley of a magnetizing fixture, clamped stretched, and magnetized by a coil. The newly magnetized strip is then cut and fed into a trimming fixture. As the magnetized strip goes through the trimming fixture, it runs over a hall effect sensor which determines where a center of a pair of poles is located. Based on where a pair of poles is located the cutting blade of the trimming fixture is activated and a magnetic strip that can be turned into a speed ring is created.

Abstract: In order to manufacture parts with an outer profile, a workpiece 32 is pressed by a pressure piece 24 through a ring-shaped cutting tool 34. The cutting tool 34 has a plurality of disks with inner cutting edges 62 for removing material from the workpiece 32. The cutting edges are progressively longer in the advance direction, so that each cutting edge removes material chips and the last cutting edge in the advance direction corresponds to the desired outer profile of the part. In order to improve chip removal, the chip chambers 74 located between the cutting edges communicate with the outside through radial connection openings 128 which are distributed all around their circumference. To hold the workpiece 32 securely on the pressure piece 24, a pressure pad 76 extends through the cutting tool 34 and is supported on the side of the workpiece 32 opposite to the pressure piece 32, and a hydraulic piston 80 generates a compression force on the pressure pad 76.

Abstract: A device for forming flashing, and a method for forming the same for adaptation to freeze boards. The present invention is a device for forming flashing comprising a plate with at least one groove cut through the plate. The groove in the plate has at least one angle changing the groove from a first direction to a second direction on the plate. The grooves may be organized in V-shape or Z-shape arrangements. Flashing is inserted into the groove, bending the sheet metal to take on the form of a similar shape to the groove. The flashing is then pulled through the device, creating a uniform bend along the length.

Abstract: Porous metal compacts suitable for use as electrodes are formed through the reduction of a metal billet consisting of multiple filaments of an appropriate valve metal, preferably tantalum, contained within, and spaced apart by, a ductile metal, preferably copper. The filaments are elongated and substantially parallel within the billet. The array of valve metal filaments within the billet is surrounded by a continuous layer of valve metal. This metal is preferably, but not necessarily, the same as that which forms the filaments. The valve metal layer preferably completely surrounds the filament array circumferentially and runs the full length of the filaments. The layer is separated from the array by the same ductile metal that serves to separate the filaments from each other. This same ductile metal forms the surface of the billet, preventing exposure of the valve metal layer.

Abstract: Disclosed is a method of producing a hollow metallic body having a cylindrical shell provided on its outer surface with at least one predetermined breaking line. The shell is formed by a drawing process and the predetermined breaking line is produced continuously by rolling-in before, during or after said drawing process.

Abstract: A process for manufacturing an aneurysm clip (10) having a coil spring (22), a first arm (26) ending in a first clamping jaw, and a second arm (34) ending in a second clamping jaw (40). The method includes: (a) providing a cylindrical starting rod (1) of titanium or titanium alloy; (b) cold drawing the rod to reduce its diameter and increase its strength; (c) cutting the rod to form a single resilient member (12); (d) winding the member about a mandrel to form the coil spring while incorporating the deflection of the arms into the clamping force of the clip; (e) shaping the member into two end sections (16) forming the clamping jaws and two connecting sections (18) forming connecting elements for the jaws; (f) coining the two end sections of the member a temperature between 900 and 1000 degrees F.; and (g) bending the clamping jaws into a position assuring that the clamping jaws are parallel when clamped onto tissue (70).

Abstract: Assembly to expel bars which is associated with a bar production line (11) fed by a coiled roll (12), the bar production line (11) comprising in line a straightening and drawing assembly (13), an assembly (14) for shearing to size, a revolver-type storage assembly (15) and a gauging assembly (16), the revolver-type storage assembly (15) comprising rotary drum means (17) including peripherally a plurality of container seatings (18) to hold the drawn bars, the assembly to expel bars (10) comprising thrust means (21) associated with guide means (26) cooperating with the container seating (18) lying momentarily on the same axis as the axis (20) of the bar production line (11).

Abstract: A wire 10 made of metal is shaped into a wire having a diameter of 5 mm by a circular die 12 and then, cut to a plurality of lengths of 500 mm. The wire 10 is heated in hydrogen atmosphere at 800.degree. C. for two hours. Then, the wire 10 is drawn by a plurality of triangular dies 14, 16, 18, and 20 sequentially without winding the wire 10 around a reel. As a result, the wire 10 is shaped into an approximately regular triangular configuration in section. The wire 10 shaped into the approximately regular triangular configuration is cut to a plurality of lengths of 40 mm and then supplied to a predetermined place for a subsequent processing.

Abstract: This flaw-treatment apparatus is able to prevent an increase in the number of flaw cuts by detecting false flaw-detection, and prevent the occurrence of die marks. For attaining these effects, this apparatus is comprised of: detection of the surface flaws of the wire-shaped metal by applying a flaw-detecting device, cutting and removal of the detected flaws by applying a flaw-cutting device, drawing of the flaw-free wire-shaped metal by applying a drawing device, spraying of lubricant on the wire-shaped metal, and removal of excess lubricant together with dust, and further grinding of the flaw-cut portion of the wire-shaped metal for obtaining adequate surface roughness before grinding.

Abstract: This flaw-removal device prevents overlooking of flaws in the automatic flaw-cutting process by rectifying the twist of a wire-shaped metal drawn from a cannon-shaped wire supply stand, further promoting efficiency in removing remaining flaws by applying the automatic flaw-cutting process and removing the uncut flaws by hand. In this invention, a twist-rectifying drum 3 is installed in front of a flaw-detecting device 4. It then becomes possible to rectify the twisting of the wire-shaped metal by winding the wire-shaped metal installed on a cannon-shaped wire supply stand around the twist-rectifying drum in a length longer than one turn of the coiled wire-shaped metal so that the wire-shaped metal is freely mounted on the drum. It also becomes possible to remove an uncut flaw by hand by installing a flaw-check and removal site 10 having a specified span between drawing dies 8 and a wire-drawing drum 9, and by stopping the portion of the wire-shaped metal having uncut flaws at the site 10.

Abstract: A method of forming adjustable bushing rings comprising the steps of drawing wire of round cross-section and predetermined diameter through a die forming said drawn wire in a wire having a generally trapezoidally-shaped cross-section. The drawn wire is cut into segments and these segments are bent about a rigid cylindrical form of a predetermined diameter until the elongated sides of said drawn wire are adjacent but spaced from each other a predetermined distance forming bushing rings.

Abstract: Containers of explosive liquids can be prevented from exploding by filling the containers with meshes made from metal foil which occupies a negligible fraction of the volume of the container although it must completely fill the container. In order to refill the containers, the rib mesh (1) must consist of sufficiently small, spherical bodies (24). The invention also deals with the production of these filling bodies (24) from aluminum strip expanded into a mesh. The aluminum strip is first passed through a calibration opening (4) which compacts it into a bar (2) of circular cross-section which is then compacted perpendicularly to its length and continuously transported in the longitudinal direction as it is being squeezed. The front piece of the bar is then detached and pressed in a mould with a hemispherical bottom (21) by a die with the same inner contour to form a spherical filling body.

Abstract: The invention provides a process of producing a nozzle member for sucking and transporting a string of yarn having an inner diameter which varies along an axial direction of the nozzle member. The process comprises the step of drawing a pipe stock having a predetermined outside profile so as to transfer the outside profile in an axial symmetrical relationship to an inside profile of the pipe stock. By the process, a nozzle member can be produced readily with a high degree of accuracy.

Abstract: A wire drawing machine having first and second capstans for unwinding wire from first and second coils and for pulling the wire through first and second wire drawing dies. The output from both capstans is directed to a single production machine, with the capstans alternately supplying the production machine so as to maintain a substantially continuous flow of wire to that machine.

Abstract: An apparatus and method for shaving elongate metal stock such as rod, wire and the like, characterized by the employment of a plurality of progressive die stations each including diametrically opposed segmental dies which are automatically indexed to remove surface imperfections from metal stock, to impart desired cross-sectional shapes to the metal stock and/or to impart desired tapered profiles to the metal stock. The segmental dies at each station are rigidly secured to respective carriages by heel and toe clamps and the carriages are radially advanced and retracted in rigid restraints by hydraulic actuators provided with adjustable mechanical stops which limit inward carriage adavancement. The carriages and hydraulic actuators for each station are mounted on a mounting plate which is securable to an upright support plate at any one of a member of rotated positions.

Abstract: A wire shaving apparatus for shaving a periphery of wire, bar or rod stock, including structure defining a product flow path between an input and an output and a plurality of shaving stations spaced along said flow path for scrapingly engaging product conveyed through said structure. Each shaving station includes a pair of slide mechanisms, one slide mounting a releasable tool cartridge including a pair of cutting tools having associated cutting edges positioned at a predetermined angle, and another slide assembly mounting a product support cartridge including support rollers aligned with said cutting tools for supporting said product as it is being scraped. The slides are reciprocally moved between processing and retracted positions by a threaded drive shaft, the rotation of which is controlled by a servo controlled system. A clamping arrangement associated with each slide mechanism releasably clamps the tool and support cartridges allowing easy and speedy replacement.

Abstract: An arrangement for and method of operation for threading strand-like material such as wire or tubing around a grooved type, rotatable block assembly wherein tension is needed to pull the material through a reduction die, includes a plate mounted on the same shaft as the block. This plate supports three devices used in a time sequence relationship in said threading operation for the drawing process: a gripper arm for grasping the pointed end and introducing it into the groove; a shear for severing the pointed end; and a deflector mechanism for guiding the material away from the block assembly. Clutch assemblies are selectively operated to place the plate into and out of engagement with the drawing block for the plate's rotation therewith and it's non-rotation.

Abstract: A tool for forming striations (shallow grooves) in a cylindrical dowel which includes a block having a dowel hole, and crested edges, such as screw threads, extending into the hole such that when a dowel is driven through the hole, it will be provided with surface grooves on one or both sides to provide glue release passages and a tight dowel joint.

Abstract: A method of manufacturing stationary electromagnetic cores utilizes mild steel having a carbon content of up to 0.01% by weight and an impurity content of less than 0.31% by weight. Use of this material lowers the cost of manufacturing electromagnetic cores by shortening the drawing process and obviating the necessity for magnetic annealing.

Abstract: The die set for sizing sections includes a movable block and a stationary one, both blocks having cutout portions receiving a sizing die, movable knives and stationary knives forming a jig secured to the stationary block, the jig having made therein communicating channels arranged in accordance with the contour of the section, the jig further having grooves perpendicular to the channels for receiving the movable knives and interacting with the inclined surface of the cutout portion of the movable block.

Abstract: A method for continuously relieving residual stresses in hot extruded then cold drawn brass sections, particularly leaded yellow brass. In the disclosed method, the residual stress is localized near the surface of the brass section during cold draw by limiting the percentage reduction in cross-sectional area for the section as it passes through a smaller angle cold draw die. This is accomplished by using a cold draw die having a relatively small attack angle which minimizes the stress at the center of the brass section and localizes the residual stress to an area near the surface of the section. The configured extruded, cold drawn rod is mechanically worked by passing it through mechanical benders which are set to alternatively bend the rod out of alignment first relative to a horizontal longitudinal axis and then relative to a vertical longitudinal axis.

Abstract: This invention is made with a view to remarkably improving the smoothness of the inside surface of the hole of a high pressure fuel injection pipe to be used for Diesel internal combustion engines and to improving the true circularity of the hole shape and the uniformity of the hole diameter and is a method of manufacturing high pressure fuel injection pipe materials characterized by forming a pipe body by cutting and removing an interposed slag layer collected and deposited near the center of a steel bar material in the steel bar direction and then gradually elongating the pipe body to be of desired dimensions by the repetition of an annealing treatment in a non-oxidizing or reducing atmosphere and a drawing and reducing treatment by using both die and plug.

Abstract: An apparatus for manufacturing heat transfer tubes for use in evaporators and coolers for freezers, air conditioning units, refrigerators, and the like, with close machining tolerances. It forms cavities, with small openings communicating them with the outside, on the inside of a tube, through three steps of forming a multiplicity of alternate grooves and ribs in parallel on the inner surface of the tube, forming cuts in the concentrically directed crests of the ribs, and then forcing the crests sidewise so that the crest of each rib is bent down onto an intermediate part of the adjacent rib to form a cavity in between.

Abstract: A carriage drawing machine for uniformly drawing and cutting-to-length drawn elongated material and having a main drive shaft with means for driving a drawing machine carriage so as to advance the elongated material, a severing device and means for coupling the severing device to the main shaft each time the elongated material is to be severed, the severing device including two cutters disposed in a common plane and eccentrically coupled to the main drive shaft, the cutters being rotatable in opposite directions and in synchronism with the advance of the elongated material during the severing operation, means defining between the two cutters a travel path for the elongated material being advanced, each of the cutters including a ring, a knife extending radially outwardly from each ring toward the travel path between the cutters, and means cooperating with the cutters for adjustably controlling the knives to follow the drawn material and to orient the knives perpendicularly to the direction in which the materi

Abstract: The invention is concerned with a method of and apparatus for the continuous drawing of metal tubing by the die and floating plug method using rotating drawing blocks to provide draughting tension. Tube lengths are processed joined end-to-end in sequential stages with accumulators provided between adjacent dies to permit the receipt of tubing from the upstream die and the supply of tubing to the downstream die to be at different rates. Each joint between lengths is broken upstream of a die but remade downstream thereof, the accumulator absorbing and supplying tube from/to adjacent blocks while the tube rejoining process is effected.

Abstract: A pulling device for drawing the product through the draw die comprises a drum around which the drawn product is wound as it issues from the die. The drum is driven in rotation and a device for putting the drawn product leaving the drum under tension causes the drum to operate in the manner of a capstan.

Abstract: Multiple gauge metal strip is prepared by a process which comprises first shaving said strip by a process comprising drawing said strip through a shaving apparatus adjusted to achieve maximum stock removal in relation to the yield strength of said strip whereby said yield strength is not exceeded whereby surface reduction is confined to an area comprising 5 to 50% of total surface area and volume reduction ranges from 10 to 60% of initial strip cross sectional area, and drawing the strip through a die which defines the desired final cross sectional configuration to produce a reduction of said strip to final dimension, wherein said drawing is performed without direct surface-to-surface contact between said strip and said die.

Abstract: A seamless pipe made by extrusion or piercing and having eccentric interior has the outside of one of its ends turned to concentric dimensions with its interior and is pulled through a peeling and scraping tool affixed to a positioning die, and over a mandrel which widens the pipe particularly in the zone of peeling.

Abstract: This invention relates to a wire processing machine comprising a die through which wire is drawn along a rectilinear path and a turning head downstream of the die at which the die-drawn wire is surface turned. The turning head is rotatably mounted in bearings which are oil-mist lubricated.